"Sec. 2. Immediately after the taking effect of this Act and within the month of January of every odd year, all banks, building and loan associations, and trust corporations shall forward to the Treasurer of the Philippines a statement, under oath, of their respective managing officers, of all credits and deposits held by them in favor of persons known to be dead, or who have not made further deposits or withdrawals during the preceding ten years or more, arranged in alphabetical order according to the names of creditors and depositors, and showing:

"(a) The names and last known place of residence or post office addresses of the persons in whose favor such unclaimed balances stand;

"(b) The amount and the date of the outstanding unclaimed balance and whether the same is in money or in security, and if the latter, the nature of the same;

"(c) The date when the person in whose favor the unclaimed balance stands died, if known, or the date when he made his last deposit or withdrawal; and

"(d) The interest due on such unclaimed balance, if any, and the amount thereof.

what does letter c mean? (this is under the unclaimed balances act)